Method for Scheduling Distributed Virtual Resource Blocks

1. A method for transmitting downlink data using resource blocks at a base station in a wireless mobile communication system, the method comprising: transmitting downlink data mapped to physical resource blocks (PRBs) to a user equipment, wherein virtual resource blocks (VRBs) are mapped to the PRBs for each of a first slot and a second slot of a subframe, wherein indexes of PRBs of the first slot are shifted for a predetermined gap with respect to indexes of PRBs of the second slot, wherein an index of a PRB which is mapped to a VRB is determined by using N gap and N DVRB , where N gap is a value of the predetermined gap and N DVRB is a number of the VRBs, and wherein N gap is a multiple of P 2 , where P is a number of consecutive PRBs in one RBG and is a function of a system bandwidth.

2. The method according to claim 1 , wherein indexes of the VRBs are interleaved by a block interleaver, wherein an index o 1,d of one of the PRBs of the first slot which is mapped to an index d of one of the VRBs is set to p 1,d +N gap −N DVRB /2, when a temporary index p 1,d of the one of the PRBs of the first slot is greater than or equal to N DVRB /2, wherein an index o 2,d of one of the PRBs of the second slot which is mapped to the index d is set to p 2,d +N gap −N DVRB /2, when a temporary index p 2,d of the one of the PRBs of the second slot is greater than or equal to N DVRB /2, and wherein d is an integer value from 0 to N DVRB −1, and p 1,d , p 2,d , o 1,d , and o 2,d are integer values from 0 to N PRB −1, where N PRB is a number of the PRBs.

6. A base station configured to transmit downlink data using resource blocks in a wireless mobile communication system, the base station comprising: a processor configured to control a transmitting operation of the base station; and a memory unit driven by the processor, wherein the processor is further configured to transmit downlink data mapped to PRBs to a user equipment, wherein VRBs are mapped to the PRBs for each of a first slot and a second slot of a subframe, wherein indexes of PRBs of the first slot are shifted for a predetermined gap with respect to indexes of PRBs of the second slot, wherein an index of a PRB which is mapped to a VRB is determined by using N gap and N DVRB , where N gap is a value of the predetermined gap and N DVRB is a number of the VRBs, and wherein N gap is a multiple of P 2 , where P is a number of consecutive PRBs in one RBG and is a function of a system bandwidth.

7. The base station according to claim 6 , wherein indexes of the VRBs are interleaved by a block interleaver of the base station, wherein an index o 1,d of one of the PRBs of the first slot which is mapped to an index d of one of the VRBs is set to p 1,d +N gap −N DVRB /2, when a temporary index p 1,d of the one of the PRBs of the first slot is greater than or equal to N DVRB /2, wherein an index o 2,d of one of the PRBs of the second slot which is mapped to the index d is set to p 2,d +N gap −N DVRB /2, when a temporary index p 2,d of the one of the PRBs of the second slot is greater than or equal to N DVRB /2, and wherein d is an integer value from 0 to N DVRB −1, and p 1,d , p 2,d , o 1,d , and o 2,d are integer values from 0 to N PRB −1, where N PRB is a number of the PRBs.